A batch reactor is characterised by Variation in reactor volume Constant residence time Variation in extent of reaction and properties of the reaction mixture with time Very low conversion TRUE ANSWER : ? YOUR ANSWER : ?
The rate constant of a reaction depends on the Temperature of the system Initial concentration of reactants Time of reaction Extent of reaction TRUE ANSWER : ? YOUR ANSWER : ?
Fractional conversion __________ for an exothermic reversible chemical reaction, when the temperature is maximum. Unpredictable from the data Remains unchanged Increases Decreases TRUE ANSWER : ? YOUR ANSWER : ?
Photochemical reaction rate does not depend significantly on temperature, because The energy of reacting molecules exceeds the activation energy by absorption of light It is a reversible reaction It is an exothermic reaction None of these TRUE ANSWER : ? YOUR ANSWER : ?
Half life period of decomposition of a liquid 'A' by irreversible first order reaction is 12 minutes. The time required for 75% conversion of 'A' is __________ minutes. 12 6 24 18 TRUE ANSWER : ? YOUR ANSWER : ?
A catalyst in a chemical reaction Alters the reaction mechanism Decreases the activation energy Increases the frequency of collisions of reacting species All of these TRUE ANSWER : ? YOUR ANSWER : ?
For a heterogeneous catalytic reaction The catalyst does not form an intermediate complex with the reactant The surface of the catalyst does not play an important role during reaction Free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction A relatively small amount of catalyst can cause the conversion of large amount of reactants which does not mean that catalyst concentration is important TRUE ANSWER : ? YOUR ANSWER : ?
Organic catalysts differ from the inorganic catalyst in the sense that the former is Prohibitively costly Proteinous in nature Active at very high temperature only Active at cryogenic temperatures only TRUE ANSWER : ? YOUR ANSWER : ?
From collison theory, the reaction rate constant is proportional to Exp(- E/2RT) Tm.exp(- E/RT) Exp(- E/RT) √T TRUE ANSWER : ? YOUR ANSWER : ?
Rate of a chemical reaction is not affected by the Catalyst Reactant's concentration Temperature Number of molecules of reactants taking part in the reaction TRUE ANSWER : ? YOUR ANSWER : ?